HA2 Adding and Subtracting Rational Expressions Practice

6x / 20xy

3 / 10y

(6x+1) / (20xy)

3 / 20xy

n / 2m

n / 3m

(m² + 4n²) / 12m

n / 4m

 $\frac{-2x-10}{3x+4}\ ,\ -\frac{4}{3}$  

 $\frac{-2x}{3x+4}\ ,\ x\ne-\frac{4}{3}$  

 $-2x\ ,\ x\ne0$  

 $-2x-10\ ,\ x\ne0$  

 $\frac{x^2-24}{\left(x+6\right)\left(x-6\right)}\ ,\ x\ne\pm6$  

 $\frac{x^3+6x^2-24x}{\left(x^2-36\right)\left(x+6\right)}\ x\ne-6,\ 36$  

 $\frac{x^2+2x-24}{\left(x+6\right)\left(x-6\right)}\ ,\ x\ne\pm6$  

 $\frac{x^2+12x+24}{\left(x+6\right)\left(x-6\right)}\ ,\ x\ne\pm6$  

 $\frac{-x^2+3x-34}{\left(x+8\right)\left(x-4\right)}\ ,\ x\ne-8,\ 4$  

 $\frac{-x^2+3x-34}{\left(x+8\right)\left(x-4\right)}\ ,\ x\ne-4,\ 8$  

 $\frac{-x^2-3x+46}{\left(x+8\right)\left(x-4\right)}\ ,\ x\ne-8,\ 4$  

 $\frac{-x^2-3x+46}{\left(x+8\right)\left(x-4\right)}\ ,\ x\ne-4,\ 8$  

 $\frac{7x-21}{6x^2-6x}\ ,\ x\ne0,\ 1,\ 3$  

A $\frac{7x-21}{6x^2-6x}\ ,\ x\ne1,\ 3$  

 $\frac{7x^2-21x}{6x^3-6x^2}\ ,\ x\ne0\ ,\ 1,\ 3$  

 $\frac{7x^2-21x}{6x^3-6x^2}\ ,\ x\ne1,\ 3$  

 $\frac{5x-9}{\left(x-5\right)\left(x+4\right)\left(x+3\right)}\ ,\ x\ne-5,\ 3,\ 4$  

 $\frac{5x-11}{\left(x-5\right)\left(x+4\right)\left(x+3\right)}\ ,\ x\ne-4,\ -3,\ 5$  

 $\frac{5x-11}{\left(x-5\right)\left(x+4\right)\left(x+3\right)}\ ,\ x\ne-5,\ 3,\ 4$  

 $\frac{5x-9}{\left(x-5\right)\left(x+4\right)\left(x+3\right)}\ ,\ x\ne-4,\ -3,\ 5$